Metal building construction.



No. 8217,090.l

J. F. MAKowsKI. METAL BUILDING coNsTRUcTIoN. v APPLIOATION FILED JAEN. 1908.

' UNiTED STAT-ns PATENT OFFICE.

JOHN F. MAKOWSKI, OF. SAN FRANCiSco, CALiFoRNiA, ASSIGNOR To oHAeLES J. eREENWALixjoF SANFnANcrSco, cALiFoRNiA.

METAL suiLniNG ooN'si-,Ruci-Ion.

specification of Lett-.ers Patent. i

regenten Nov. 27, 190e.

puntata med January 19.1906. anni1 stesa-15a.

To /LZZ whofn it may concern:

Be it known that l, JOHN F. MAKOWSKI, a citizen of the United States, residing at San Francisco, county of San Francisco, and State of California, have invented new and useful Improvements in Metal Building Con- `struction, of which the following is a specification.

My invention relates to iinprovenients in building construction which are especially applicable to partitions, fioors, ceilings, con-- crete reinforce, .and work of a like character.

It consists in the combination of arts and in details of construction, which wil he more fully explained by referenceto the accompanying drawings, in which- Figure 1 is a perspective view of a partition, partially broken away, to show the application of iny invention. Fig. 2 is a longitudinal section on line B B of lfig. 3. Fig. 3 is a front View showing how the strips are `locked together.

It is the object of iny invention to construct a light and stiff structure which may be employed for any one of the first-named purposes and for others of a like character.

In carrying-out niy invention I take thin sheet metal and forni 'upon it a flange on one side. The inain portions of the strips thus forined are shown at A, and the upturned flanges are represented at 2. These strips are either set up vertically, `as in the case of artitions or siinilar structures, or they may be laid horizontally for floors and the like. They are placed in pairs, as shown in thedrawings, at such a distance apart as inay be desired to forni the required thickness from outside to outside, and they are connected as follows: Each of the strips A has punched in 1t an opening 3, so as to forni a tongue 4, which can be turned outwardly at right angles with the strip. k5 represents other strips of sheet nietal, and these are punched to forni corres )ending tongues 6, and these tongues 6 are folded through the slots forined in t-he part A, so as to lie parallel with the tongues 4 of the strips A. ln order to firmly interlock these parts, I have here shown the tongues dovetailed and fornied so that the opening which is left byturning down the tongues 4 will converge froin the top downward, 'as here shown, and be narrowest at' the point Where the tongues are turned.

` The tongues for/lined in the strips 5 may be l cut at the edges of the strips, and the strips are of such width that when the tongues are folded they will fold throu h the openings made in the strips A, and t ey lie flat upon the tongues 4. Thus the tongues being turned at'each edgepof the'strip 5 and connecting with the two parallel stri s A will lock the two firmly together, so t at there will be any desired or required space or interval between the strips A. 'lhe distance from outside to outside of 4 these pairs is equal, as before stated, to the required thickness of the partition. or the depth of the floor or other part. The upturned flanges 2 of the strips A provide for :i sufficient stiffness of the metal in that direction, .while the binding.-

of the strips together transversely makes a Very rigid structure.

1f this structure is to be in t-heforni of 4a artition and to. be plastered upon one or both sides, it will be Seen that nietal lathinoP of any description-such as wire, expanded inetal, or the like-niay be secured to the edges ofthe structure thus forinedand when plastered will form a hollow wall for any uses to which such a wall may be put. lf the structure is to be used for flooring or to` Sup ort a body of concrete, it will be niade in the same Wa and will then lie horizontally-that is, t e depth will be represented by the distance between the outside flanges 2 of the strips A, and concrete may be filled in between these strips, it being understood that the number of pairs of strips A A, with their connections, will be sufficient to extend over the space to be covered. The concrete or equivalent flooring will be so placed that then per portion of the structure-will be einbe ded in the concrete, and, if desired, the lower portion may serve as the ceiling of the "apartment beneath and be lathed and plastered, as before described. It will be seen that a similar struc-ture can be used to forni a' roof, a sidewalk, or other concrete support and reinforce. These strips A, united in pairs, as previously described, and set up as a partit-ion, form a inetal Studding, the airs being set as far apart as may be desired) or as contract calls for, and when laid 'for floors or equivalent horizontal or inclined structure they will serve in the place of girders to su port the superstructure.

'It will be un erstood that any lock may be employed equivalent to that herein described by. which the connecting strips or plates may l their edges, trapezoidal slots formed at inbe secured. or interlocked with the main l tervals in the length of the strips, and having strips. tongues turned at right angles from the nar- Having thus described'my invention, what rowest of the parallel sides of the slots, I claim, and desire to secure by Letters Patent, is- I 1. A building construction comprisinganl gle-strips of lmetal iixed in pairs, and transl verse strips connecting the members of said l pairs said transverse strips having tongues and said angle-strips having slots with which said tongues interlock.

2. In a metal construction for buildings and the like, strips of metalhaving flanges turned at right angles with the mainportion, trapezoidal slots cut atintervals in the length of each of the strips to form tongues which are turned at right angles with the surand bent from their edges, said tongues passing through the slots bf" the iirst-named strips and being bent tel interlock therewith. 4. In a hollow partition, 'loor and like structure, the combination of an strips separated from each other in pairs, an transverse strips ,extending between the members of each pair of angle-iron strips, said transverse ,strips having tongues interlockable with the angle-iron stri s.

In testimony whereof I have hereunto set my hand in presence of two subscribing witfaces of the strips, transverse strips having nesses.

similar tongues interlocking with those ofthe l JOHN F. MAKOWSKI. iirst-named strips.v i Witnesses:

' 3. In a metal construction for buildings, l HENRY P. TRICOU,

strips of metal having flanges turned upon l SII. NOURsE.

transverse strips extending across two of the' first-named stripshaving similar tongues cut: 

